// For flags

CVE-2022-35897

 

Severity Score

6.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An stack buffer overflow vulnerability leads to arbitrary code execution issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. If the attacker modifies specific UEFI variables, it can cause a stack overflow, leading to arbitrary code execution. The specific variables are normally locked (read-only) at the OS level and therefore an attack would require direct SPI modification. If an attacker can change the values of at least two variables out of three (SecureBootEnforce, SecureBoot, RestoreBootSettings), it is possible to execute arbitrary code.

Se descubrió una vulnerabilidad de desbordamiento del búfer que provoca un problema de ejecución de código arbitrario en Insyde InsydeH2O con kernel 5.0 a 5.5. Si el atacante modifica variables UEFI específicas, puede provocar un desbordamiento de la pila, lo que lleva a la ejecución de código arbitrario. Las variables específicas normalmente están bloqueadas (de solo lectura) a nivel del sistema operativo y, por lo tanto, un ataque requeriría una modificación directa del SPI. Si un atacante puede cambiar los valores de al menos dos variables de tres (SecureBootEnforce, SecureBoot, RestoreBootSettings), es posible ejecutar código arbitrario.

*Credits: N/A
CVSS Scores
Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-07-15 CVE Reserved
  • 2022-11-21 CVE Published
  • 2024-06-13 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Insyde
Search vendor "Insyde"
 Kernel
Search vendor "Insyde" for product "Kernel"
 >= 5.0 <= 5.5
Search vendor "Insyde" for product "Kernel" and version " >= 5.0 <= 5.5"
-
Affected